Packing-ring.



PATENTED MAR. '7, 1905.

W. 0RD.

PACKING RING.

APPLIOATION FILED we. 31, 1904.

2 SHEETS-SHEET 1.

% WITNESSES.-

INVE/VTUR ATTORNEYS PATENTED MAB. v, 1905.

ATTORNEYS 2 SHEETS-$113121 2.

INVENTOR W. 0RD.

PACKING RING.

APPLICATION FILED AUG 31. 1904 Patented March 7, 1905.

PATENT OFFICE.

l/VILLIAM 0RD, OF BROOKLYN, ()lllO.

PACKING-RING SPECIFICATION forming part of Letters Patent N0. 784,065, dated March '7, 1905. Application filed August 31, 1904. Serial No. 222,357.

To all w/tom it may concern.-

Be it known that I, VVILLIAM One, a citizen of the United States of America, residing at Brooklyn, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Packing-Rings for Pistons or Plungers; and I hereby declare the following to be a full, clear, and exact description oi the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in packing-rings for pistons or plunger-s.

The object of this invention is to construct a self-expanding packing-ring which is simple and durable in construction, which has the contour of a true circle and will perfectly lit the cylinder in which the piston or plunger comprising the said packing-ring is adapted to operate, and which is reliable and noiseless in its operation.

l Vith this object in view, and to the end of realizing other advantages hereinafter appearing, this invention consists in certain features of construction and combinations of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is an end elevation of a packing-ring embodying my invention. Fig. 2 is a right-hand side elevation relative to Fig. 1. Fig. 3 is an end elevation in section on line 3 3, Fig. 2, looking in the direction indicated by the arrow. Fig. 4 is a section on line t 4:, Fig. 1, looking in the direction indicated by the arrow.

My improved packing-ring comprises a castiron annular section A, which is provided centrally between its ends and externally With an annular peripheral recess a. The section A is split, as at A. The split A is formed by two parallel or substantially parallel transverse cuts 10 and a circumferential cut 12, as shown in Fig. 2. The cut 12 and the inner portions of the cuts 10 being covered by a segmental piece B, as will here inai'ter appear, are indicated by dotted lines in Fig. 2. The transverse cuts 10 are ar ranged a short distance apart circumferentially of the section A. and extend from a point centrally between opposlte side walls,

respectively, of the recess a to opposite end faces, respectively, oi the said section. The circumferential cut 12 connects the transverse cuts 10 at their inner ends.

To form the section A, an iron ring is first cast and then portions of the said ring are cut out to form the split A, whereupon the ends of the said ring are drawn together to :lorm the section A, which is obviously son'iewlntt smaller diametrically than the cast-iron ring ex'nployed in making the same.

The ends of the' split section A are drawn tightly together in any approved manner during the manufacture of my improved packingring, and means for holding the said ends drawn together is provided and comprises, preferably, the segmental piece B, composed, preferably, of brass. The pi ece B engages the recess a and covers the cireum'ferentially-extending central portion 12, as well as the luner ends of the transverse portions 10 of the split A. The segmental piece B is concentric with the packing-ring and forms a portion of the periphery oi the said ring. The segmental piece ll is provided in its inwardly-lacing circumlerentially-extending surface and contrally between its sides with a groove or recess 13, which is arranged over the circumferentially-extemling central portion 12 oi the split A and extends beyond the ends of the said portion of the said split. The segmental piece B is provided with two radial holes 14-, arranged a suitable distance apart longitudinally oi the said piece and connecting at their inner ends with the groove or recess 13. The holes 14 extend to the outer circrmiferentiallyextending surface of the segmental piece 1%. The segmental piece B is provided also at its inwardly-lacing oircun1ferentially-extending surface with two screw-threzuled holes 6, arranged a suitable distance apart longi tud i nal ly of the said piece, which holes are engaged by correspondingly-threaded bolts or screws (:l, which extend loosely through bolt-holes 15, formed in opposite end portions, respectively, of the section A.

A split steel expansion-ring U is arranged and snugly i'its within the cast-iron section A, with the transverse split C in the ring U diametrically opposite the split A in the section A. A wedge D is driven between the ends of the ring 0 to cause the latter to tightly engage the internal circuinferential]y-extending surface of the section A. The side walls of the split or break C preferably flare toward the periphery of the expansion-ring C, and the wedge D conforms in cross-section to the said walls.

The ring C is provided with two bolt-holes 16, which register with the different bolt-holes 15, respectively, in the section A. The two bolts or screws G extend loosely through the diflerent holes 16, respectively, in the ring C and loosely through the holes 15 in the section A into the holes 6 in the segmental piece B. Nuts 9 are mounted on the bolts or screws G, and washers /a are interposed between the said nuts and the adjacent surface of the ring C. It will be observed, therefore, that by tightening the nuts G upon the assemblage of the cast-iron section A, segmental piece B, bolts G, nuts g, and washers h the segmental piece B is secured in place, and the ends of the section A are held together and overlap each other circumferentiall y along the circumferentially-exten ding central portion 12 of the split A.

The recess 13 and the connected holes 14 in the segmental piece B are completely occupied by a filling J, of antifriction metalsuch, for instance, as Babbitt metal. The filling J is cast in the said recess 13 and connected holes 14:. The molten metal employed in casting the said filling is poured in at the holes let. The filling J covers the circumferential central portion 12 of the split B and the inner ends of the transverse portions 10 of the said split. The filling J is instrumental in forming a fluid-tight joint between the segmental piece B and the cast-iron section A.

The section A is provided in the inner portion of each side wall of the recess a with several cavities or holes 17, arranged at suitable intervals circumferentially of the said section. The cavities or holes 17 extend from the inner circumferentially-extending surface of the section A to and connect with the recess a. As shown, four cavities or holes 17 are formed in the section A at each side of the recess (,6. Two of the cavities or holes at each side of the recess a are arranged at opposite sides, respectively, of and in suitable proximity to the split A and are considerably longer circumferentially of the packingring than the remainder of the cavities or holes 17 at the said side of the said recess. In fact, the cast-iron section A has the greatest rigidity diametrically opposite the split A in the said ring and adjacent the ends of the expansion-ringC, and is gradually weakened toward the said split A, so as to facilitate the conforming-by the said section A to a true circle when the segmental piece G is secured in place, because the ends of the section A must conform to the inner circumferentially-extending surface of the segmental piece A, which surface, as already indicated, is an arc which is concentric with a true circle to which my improved packing-ring conforms. It will be observed also that the extension of the cavities or holes 17 to the inner circumferentially-extending surface of the section A materially increases the flexibility of the said section as required to facilitate the conformity of the said section to the segmental piece B.

A filling K, of antifriction metal-such, for instance, as Babbitt metal-is contained within the recess a and connected cavities or holes 17. The filling K extends from one end of the segmental piece B circumferentially of the section A to the other end of the said segmental piece. The filling K participates in the formation of the periphery of my improved packing-ring.

To lessen the rigidity of the filling K, and thereby reduce the interference With the flexibilityof the cast-iron section A by the said filling, sheet-metal partitions L are arranged radially within the inner portion of the recess a and within the cavities or holes 17. Preferably the different cavities or holes 17 at one side of the recess a register with the different cavities or holes 17 at the opposite side of the said recess, and the partitions L extend from within the cavities or holes 17 at one side of the recess (6 into the adjacent cavities or holes 17 at the other side of the said recess and have their central portions enlarged in dimensions radially of the packing-ring, as at 18, and extending into and transversely of the inner portion of the recess a. -Each partition L is provided at its inner end with a laterallyprojecting flange or flanges Z, abutting against the periphery ofthe expansion-ring C.

The filling K is cast in the recess a and connected cavities or holes 17 in any approved manner, and the said filling and the partitions L completely occupy the recess a and the connected cavities or holes 17. It will be ob served, therefore, that the partitions L are cast in casting the fillin'g K.

To cast the filling K, the cast-iron section A, with its ends drawn together in the manner hcreinbefore described, is placed upon a table with one of its end faces next to the table and then completely and closely surrounded by a mold-forming circular ring, (not shown,) which exactly conforms to the true circle to which my improved packing-ring is to conform, whereupon the molten metal required to form the filling K is poured in at the then upper holes or cavities 17. The partitions L are of course placed in position preparatory to the casting of the filling K. The expansion-ring C obviously limits the flow of molten metal inwardly in casting the filling K.

I would here remark that my improved packing-ring is placed on the market, as hereinbefore described, and shown in the accompanying drawings; but when the ring is applied in the assemblage of the parts of the piston or plunger within a cylinder the nuts 9, bolts or screws G, and washers it are loosened more or less to permit the cast-iron section A to expand; and thereby automatically take up any Wear between the periphery of the packing-ring and the cylinder, and before the said section A has been permitted to expand to the full extent the nuts may be tightened to prevent a too forcible expansion of the said section A. V hen required, the expansionring U can obviously be further expanded by further driving the wedge D or by replacing the wedge 1) shown by a larger Wedge.

i would here remark that my improved packing-ring hereinbefore described possesses strength and efficiency, has a periphery conforming to a true circle, is simple in construction, and noiseless and reliable in its operation.

Whatl claim is- 1. In a packing-ring, an outer annular section split to render it expansible and provided with a centrally-located circumferentially-extending peripheral recess; asegmental section forming a portion of the periphery of the packing-ring and engaging the recess and covering the central portion of the split in the aforesaid annular section; a filling within the annular recess and forming a portion of the periphery of the packing-ring; an inner expansion-ring arranged within and snugly fitting the aforesaid annular section and split transversely diametrically opposite the split in the outer section, and means for expanding the inner ring.

2. In a packing-ring, an outer annular castiron, section split to render it expansible and provided with a centrally-located annular peripheral recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portion of the split in the castiron section; a filling of antifriction metal within the annular recess and forming a portion of the periphery of the packing-ring; an inner expansion -ring arranged within and snugly fitting the cast-iron section and split transversely diametrically opposite the split in the cast-iron section, and means for expanding the inner ring.

3. In a packing-ring, an outer annular metal section split to render it expansible and provided with an annular peripheral recess; a segmental section engaging the annular recess at and covering the central portion of the split in the annular section and having its inwardly facing circumferentially extending surface concentric with the packing-ring and snugly engaging the split annular section circumferentially of both ends of the said split section, and a cast-metal filling within the annular recess and forming a portion of the periphery of the packing-ring.

4. In a packing-ring, an outer annular cast iron section split to render it oxpansible and provided with an annular peripheral recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portionof the split in the cast-iron section and having its inwardly-facing circumferentiallyextendingsurface concentric with the packingring and engaging the cast-iron section at opposite sides of the split in the said section; a filling of antifrietion metal within the annular recess and forn'iing a portion of the periphery of the packing-ring; a transversely-split inner expansion ring arranged within and snugly fitting the cast-iron section, and means for expanding the inner ring.

5. In a packing-ring, an outer annular castmetal section split to render it expansible and provided with an annular peripheral recess; a segmental section forminga portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portion of the split in the cast'metal section and having its inwardly-facingcircumferentiallyextending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the cast-metal sec tion, and a metal filling cast in the annular recess and forming a portion of the periphery of the packing-ring.

6. In a packing-ring, an outer annular castmetal section split to renderitexpansihle and provided with an annular peripheral recess; a segmental section .forminga portion of the periphery of the packing-ring and engaging the annular recess atand. covering the central portion of the split in the cast-metal section and having its inwardly-facing circumferentiallyextending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the cast-metal section; a filling of antifriction metal within the annular recess and forming a portion of the periphery of the packing-ring; an inner expansion-ring arranged Within and snugly fitting the castmetal section and split transversely diametrically opposite the split in the cast-metal section, and a wedge between the ends of the inner ring.

7. In a packing-ring, an outer annular metal section split to render it expansible and having an annular peripheral recess and provided with cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentially-extendingsurface of the annular section to and connecting with the annular recess; a segmental section engaging the annular recess at and covering the central portion of the split in the annular section and havingits in wardlyfacing cireumferentiallyextending surface concentric With the packing-ring and engaging and extending circumferentially of both ends of the annular section, and a metal filling izo cumferentially-extending surface of the castiron section to and connecting with the annular recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portion of the split in the castiron section and having its inwardly-facing circumferentially-extending surface engaging both ends of the cast-metal section, and a filling of antifriction metal Within the annular recess and connected cavities or holes and forming a portion of the periphery of the packing-ring.

9. In a packing-ring, an outer annular castmetal section split to render it expansible and having an annular peripheral recess and cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentially-extending surface of the cast-metal section to and connecting with the annular recess; a segmental section engaging the annular recess at and covering the central portion of the split in the annular cast-metal section and having its inwardly-facing circumferentially-extending surface concentric with the packing-ring and engaging and extending circumferentiall y of both ends of the cast-iron section; a filling of antifriction metal within the annular recess and connected cavities or holes and forming a portion of the periphery of the packingring; an expansion-ring arranged within and snugly fitting the cast-metal annular section and split transversely diametrically opposite the split in the said cast-metal section, with the side walls of the split in the inner ring diverging toward the periphery of the said ring, and a wedge interposed between and conforming to the said walls.

10. In a packing-ring, an outer annular castiron section split to render it expansible and having an annular peripheral recess and a segmental section engaging the annular recess at and covering the central portion of the split in the cast-iron section and having its inwardly facing circumferentially extending surface concentric with the packing-ring and engaging and extending circuinferentially of both ends of the cast-iron section; a filling of antifriction metal cast within and largely occupying the annular recess and connected cavities or holes and forming a portion of the periphery of the packing-ring, and partitions arranged within and extending transversely of the inner portion of the aforesaid annular I and forminga portion of the periphery recess, which partitions are cast in during the casting of the filling occupying the said recess. p

11. In a packing-ring, an outer annular castiron section split to render it expansible and having an annular peripheral recess and cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentially-extending surface of the cast-iron section to and connecting with the annularrecess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portion of the split in the cast-iron section and having its inwardly-facing circumferentiallyextending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the cast-iron section; a filling of antifriction metal Within the annular recess and connected cavities or holes of the packing-ring, and partitions arranged within and extending transversely of the inner portion of the aforesaid annular recess and extending into the cavities or holes connected with the said recess.

12. In apacking-ring, an outer annular castiron section split to render it expansible and having a centrally-located annular peripheral recess and provided at each side of the said recess with cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentially-extending surface of the cast-iron section to and connecting with the annular recess, with the cavities or holes at one side of the said recess in registry with the cavities or holes at the other side of the said recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess, and covering the central portion of the split in the cast-iron section and having its inwardly-facing circumferentiallyextending surface concentric with the packingring and engaging and extending circumferentially of both ends of the cast-iron'section; a filling of antifriction metal within the annular recess and connected cavities or holes and forming a portion of the periphery of the packing-ring; an inner steel expansion-ring arranged within and snugly fitting the castiron section and split transversely diametrically opposite the split in the cast-iron section, and means for spreading apart the side Walls of the split in the expansion-rin 13. In a packing-ring, an outer annular-castiron section split to render it expansible and having a centrally-located annular peripheral recess and provided at each side of the said recess With cavities or holes arranged at suitable intervals circumferentially of the pack- 1ng-ring and extending from the inner circumferentially-extending surface of the cast-iron section to and connecting with the annular relIO cess, with the cavities or holes at one side of the said recess in registry with the cavities or holes at the other side of the said recess; a segmental section forming a portion of the periphery of the packing-ring and engaging packing-ring, and sheet-metal partitions arranged within and extending into the adjacent cavities or holes connected with the said recess.

14. In a packing-ring, an outer annular section split to render it expansible and having a centrally located annular peripheral recess and provided at each side of said recess with cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentiallyextending surface of the split section to and connecting with the annular recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the annular recess at and covering the central portion of the split in the split section; a filling of antifriction metal within the annular recess and connected cavities or holes and forming a portion of the periphery of the packing-ring, and partitions arranged Within and extending transversely of the inner portion of the aforesaid annular recess and extending into the adjacent cavities or holes connected with the said recess.

15. In a packing-ring of the character indicated, an annular section split by a centrallylocated circumferential cut and two transverse cuts arranged at opposite ends respectively of the circumferential cut, with the ends of the section drawn and separably held together, which section is provided externally with a centrally-located circumferential annular recess and provided interiorly and at opposite sides of the said recess with cavities or recesses arranged at suitable intervals circumferentially of the packing-ring and connecting with the annular recess; a segmental section engaging the annular recess and extending circumferentially of the packing-ring and covering the aforesaid circlunferential cut and the inner ends of the aforesaid transverse cuts; and a filling of antifriction metal within the aforesaid annular recess from one to the other end of the aforesaid segmental section and extending into cavities or holes connected with the said recess.

16. In a packing-ring of the character indicated, an inner cast-metal annular section pro vided externally with a centrally-located cir cumferential annular recess and provided interiorly and at opposite sides of the said recess with cavities or recesses arranged at suitable intervals circumferentially of the packing a segmental section engaging the annular recess and extending circumferentially of the packing-ring over the split in the aforesaid cast-metal section, which segmental section is provided at its inner circuinferential surface with two screw-threaded holes arranged a suitable distance apart cirelimferentially of the packing-ring; an expansion-ring arranged within the cast-metal section and split transversely diametrically opposite the split in the cast-metal ring; a wedge interposed between the ends of the expansion-ring; bolts or screws extending through the expansion-ring and castmetal section into engagement with the aforesaid screw-thread -al holes, and the nutsand washers on the said belts or screws, and the bolt-holcs in the cast-metal section and expansion-ring being elongated circumferentially of the packing-ring, all relatively arranged substantially as shown, for the purpose specified.

17. In a packing-ring, an outer annular section provided externally with a centrally-located circumferentially-extending recess; a segmental section engaging the said rece sand extending circumferentially of the packingring over the central portion of the split in the aforesaid annular section, which segmental section is provided at its inner circumferential surface with two screw-threaded holes arranged a suitable distance apart circumferentially of the packing-ring; a split expansionring arranged within the outer annular section; a wedge interposed between the ends of the ex .)ansion-ring; bolts or screws extending through the expansion-ring and outer annular section into engagement with the aforesaid screw-threaded holes, and nuts and washers on the said bolts and screws, and the boltholes in the outer annular section and in the expansion-ring being elongated circumferentially of the packing-ring, all relatively ar ranged substantially as shown, for the purpose specified.

18. In a packingring of the character indicated, an annular section split by a cen trallylocated circiiunferential cut and two transverse cuts arranged at opposite ends respectively of the circumferential cut, with the ends of the section drawn and separably held together, which section is provided externally with a centrally-located circumferentially-extending recess; a segmental section engaging the said recess and extending circumferentially of the packing-ring and covering the aforesaid cir cumferential cut and the inner ends of the aforesaid transverse cuts, and a filling of antifriction metal within the aforesaid recess from one to the other end of the said segmental section.

19. In a packingring, an outer annular section split to render it expansible and havinga peripheral recess extending circnlnferentially of the packing-ring; a segmental section formring and connecting with the annular recess; l ing a portion of the periphery of the packing- IIO TIS

ring and engaging the said recess and covering the central portion of the split in the aforesaid section and having its inwardly-facingcircumferentially-extending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the said annular section; a filling of antifriction metal Within the aforesaid recess and forming a portion of the periphery of the packing-ring; an 10 inner expansionring arranged Within and snugly fitting the outer annular section and split transversely diametrically opposite the split in the said outer section, and means for spreading apart the side walls of the split in 5 the expansion-ring.

20. In a packing-ring, an outer annular section split to render it expansible and having a peripheral recess extending circumferentially of the packing-ring and cavities or holes arranged at suitable intervals circumferentially of the packing-ring and extending from the inner circumferentially-extending surface of the aforesaid annular section to and connecting with the aforesaid recess; a segmental 5 section engaging the said recess at and covering the central portion of the split in the aforesaid annular section and having its inwardlyfacing circumferentiallyextending surface concentric with the packing-ring and engag- 3 ing and extending circumferentially of both ends of the said annular section; a filling of antifriction metal within the annular recess and connected cavities or holes and forminga portion of the periphery of the packing-ring,

and an expansion-ring arranged Within and snugly fitting the outer annular section.

21. In a packing-ring, an outer annular metal section split to render it expansible and having a peripheral recess extending circumferentially of the packing-ring; a segmental section engaging the said recess at and covering the central portion of the split in the annular section and having its inwardly-facing circumferentially-extending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the annular section, and a metal filling cast within the annular recess and forming a portion of the periphery of the packing-ring.

22. In a packing-ring, an outer annular section split to render it expansi'ble and provided with a peripheral recess; a segmental section forming a portion of the periphery of the packing-ring and engaging the said recess at and covering the central portion of the split in the annular section and having its inwardlyfacing circumferentiallyextending surface concentric with the packing-ring and engaging and extending circumferentially of both ends of the annular section, and an expansion-ring arranged within and snugly fitting the aforesaid outer annular section.

In testimony whereof I sign the foregoing specification in the presence of two witnesses.

WILLIAM 0RD.

Witnesses:

C. H. Donna, B. 0. BROWN. 

